Cover Picture: Look fast: Crystallization of conjugated molecules during solution shearing probed in‐situ and in real time by X‐ray scattering (Phys. Status Solidi RRL 3/2013). Issue 3 (6th March 2013)

• Record Type: Journal Article
• Authors: Smilgies, Detlef‐M.; Li, Ruipeng; Giri, Gaurav; Chou, Kang Wei; Diao, Ying; Bao, Zhenan; Amassian, Aram
• Is Part Of: Physica status solidi. Volume 7:Issue 3(2013:Mar.)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2013-03-06
• Subjects: Solid state physics -- Periodicals; 530.4105
• DOI: 10.1002/pssr.201390007
• Languages: English
• ISSNs: 1862-6254

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Solution shearing and related coating techniques such as knife coating or doctor blading are developing into versatile tools to finely control thin‐film morphology to a much higher extent than has been possible with traditional deposition methods like drop casting and spin coating. By judicious choice of the coating pa‐rameters – shearing speed and gap as well as solution concentration and substrate temperature – not only high‐quality deposits can be prepared, but also laterally oriented films. Smilgies et al. show on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">pp. 177–179</ext-link> that a detailed picture of the crystallization process can be obtained in‐situ, in real time, and with high spatial resolution using a combi‐nation of grazing‐incidence X‐ray scattering and optical microscopy. A high‐precision miniature coater was developed and com‐bined with X‐ray microbeam optics and a fast‐acquisition X‐ray pixel‐array detector. The developed set‐up will be used to study crystallization under viscoelastic shear and to identify critical pa‐rameters for future roll‐to‐roll processing of organic electronics materials.</p> <p> <boxed-text content-type="graphic" position="anchor" orientation="portrait"> <graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg1v866ctn" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /> </boxed-text> </p> </abstract>